Finding the Fourth Proportional to 18,340,138.40, 27,510,207.60 and 16,772,496.80
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Solution
The fourth proportional to 18,340,138.40, 27,510,207.60 and 16,772,496.80 is: 25,158,745.20
Step by Step Solution
- Step 1: Write the proportion equation
18,340,138.40 : 27,510,207.60 = 16,772,496.80 : x - Step 2: Convert to fraction form
18,340,138.40/27,510,207.60 = 16,772,496.80/x - Step 3: Cross multiply
18,340,138.40x = 27,510,207.60 × 16,772,496.80 - Step 4: Simplify right side
18,340,138.40x = 461,414,868,938,335.75 - Step 5: Solve for x
x = 461,414,868,938,335.75/18,340,138.40 - Step 6: Final answer
x = 25,158,745.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.